When you create a facebook business page, you will have a long link that looks like this: https://www.facebook.com/pages/PAGE-NAME/lotsofnumbers
Want a short link like mine? https://www.facebook.com/ZumbaWithKimQuigley
Just go to Edit Page > Update Info and click on "change username". Choose carefully though because you can only change your username once.
Once you set a username, it will be easy to tell people how to find your page. You can also put it on your business cards. And don't forget to link to your facebook page from your email newsletters, zumba.com instructor profile, and your email signature!